Tomorrow is Yesterday - S1-E20
Corrected entry: When the Enterprise is slingshotting its way back to the "present" it uses the computer to deposit the two men at different times, The Enterprise is traveling backwards in time, so will logically meet the time when the guard was beamed up first, not after Christopher is returned to his cockpit. So the order is wrong. Should be guard then Christopher, not Christopher then guard. (00:43:15)
Tomorrow is Yesterday - S1-E20
Corrected entry: When the tractor beam crushes the fighter jet, Spock asks captain Kirk, "do you want me to turn off the tractor beam?" Why would Spock ask a stupid question like this?
Tomorrow is Yesterday - S1-E20
Corrected entry: If the Enterprise made sure everything was corrected to just before they went back in time (before actually going back to their own future) then there should have been no reason for Kirk and Sulu to recover the audio and video evidence of their arrival in the first place, since they made sure they were never there.
Correction: They were unsure whether their sling shot experiment would work.
Tomorrow is Yesterday - S1-E20
Corrected entry: Captain Christopher is beamed out of his plane while sitting down, yet he materializes on the transporter pad standing up.
Correction: This happens in most episodes of all Star Trek series where someone is beamed aboard while in a seated position, often enough that it seems to be a standard feature of the transporter that people materialize in a standing position.
Tomorrow is Yesterday - S1-E20
Corrected entry: Why do Sulu and Kirk beam down into the Air Force base in standard Starfleet uniforms? On later such missions (Assignment: Earth - Patterns of Force) they have suitable clothing made up, but here they just stand out like sore thumbs.
Correction: In the other episodes mentioned, they were trying to blend in with the people on the planet. In this episode, it was a covert mission. They did not plan to see anyone so what they wore was unimportant.
They didn't know if they were going to run into anybody, so why not play it safe and dress appropriately.
Correction: They are moving backwards in time as they approach the sun, but after the slingshot breakaway they are moving rapidly forward in time. Spock even says the chronometer is moving forward again, and then Kirk asks if they have the exact chronometer reading before redepositing Captain Christopher and the Sergeant. So the order depicted in the episode is actually the correct order.